CN216264656U

CN216264656U - Clamp and high-speed spindle machining mechanism applying same

Info

Publication number: CN216264656U
Application number: CN202122201044.9U
Authority: CN
Inventors: 占功武; 张乾慧
Original assignee: Kunshan Bosch Precision Instrument Electronic Components Co ltd
Current assignee: Kunshan Bosch Precision Instrument Electronic Components Co ltd
Priority date: 2021-09-13
Filing date: 2021-09-13
Publication date: 2022-04-12
Anticipated expiration: 2031-09-13

Abstract

The utility model relates to the technical field of numerical control machine tool equipment, in particular to a clamp and a high-speed spindle machining mechanism using the same; the fixture is used for fixing a workpiece to be processed, the left side and the right side of the fixture are symmetrically provided with a plurality of fixture units in parallel, the fixture unit positioned on the left side of the fixture comprises two vertically arranged object placing holes which penetrate through the fixture and have the same diameter, and a plane formed by the central lines of the two object placing holes is parallel to the left end surface of the fixture; the clamp unit positioned on the left side edge of the clamp is also provided with a first contraction groove and a second contraction groove which are convenient for fastening a workpiece to be processed; the first shrinkage groove vertically penetrates through the clamp, is parallel to the left end face of the clamp and is connected with the two object placing holes, and the horizontal width of the first shrinkage groove is smaller than the diameter of the object placing holes; the second shrinkage groove is vertical to the middle part of the first shrinkage groove and is deviated to the left end face of the clamp, and the second shrinkage groove vertically penetrates through the clamp and is communicated with the first shrinkage groove; the utility model has simple structure, reasonable design and high processing efficiency.

Description

Clamp and high-speed spindle machining mechanism applying same

Technical Field

The utility model relates to the technical field of numerical control machine tool equipment, in particular to a clamp and a high-speed spindle machining mechanism using the same.

Background

The high-speed spindle is a new technology which integrates a machine tool spindle and a spindle motor into a whole and appears in the field of numerical control machines in recent years. The main transmission system of the high-speed numerical control machine tool cancels belt wheel transmission and gear transmission. The main shaft of the machine tool is directly driven by the built-in motor, so that the length of a main transmission chain of the machine tool is shortened to zero, and zero transmission of the machine tool is realized. The transmission structure form of the spindle motor and the machine tool spindle which are combined into a whole enables the spindle part to be relatively independent from a transmission system and an integral structure of the machine tool, so that the spindle motor can be made into a spindle unit which is commonly called as an electric spindle. When the belt wheel transmission or gear transmission numerical control machine tool is used for drilling and processing batch columnar workpieces, the processing efficiency is low and the processing yield is low; the existing clamp can only fix a small number of workpieces at a time, and the structure of the clamp is not simple enough, so that the working efficiency is influenced; how to provide a clamp which can fix a large number of workpieces at a time and has a simple structure and a processing mechanism with high working efficiency is a problem to be solved; through searching, the technical scheme which is the same as or similar to the utility model is not found.

SUMMERY OF THE UTILITY MODEL

The utility model aims to: the utility model provides a fixture and use high-speed spindle machining mechanism of this fixture to solve prior art numerically-controlled machine tool and add man-hour to batch column work piece, the fixture structure that fixes the work piece is not simple enough, once fix work piece quantity few and machining efficiency low and the low problem of processing yield.

The technical scheme of the utility model is as follows: the fixture is used for fixing a workpiece to be machined, is in a square shape, and is symmetrically provided with a plurality of fixture units in parallel on the left side and the right side; the clamp unit positioned on the left side edge of the clamp comprises two object placing holes which are vertically arranged and penetrate through the clamp and have the same diameter, and a surface formed by the central lines of the two object placing holes is parallel to the left end surface of the clamp; the clamp unit positioned on the left side edge of the clamp is also provided with a first contraction groove and a second contraction groove which are convenient for fastening a workpiece to be processed; the first shrinkage groove vertically penetrates through the clamp, is parallel to the left end face of the clamp and is connected with the two object placing holes, and the horizontal width of the first shrinkage groove is smaller than the diameter of the object placing holes; the second shrinkage groove is vertical to the middle part of the first shrinkage groove and is deviated to the left end face of the clamp, and the second shrinkage groove vertically penetrates through the clamp and is communicated with the first shrinkage groove; the shrinkage pool that second shrink groove and anchor clamps are inside to be equipped with longitudinal symmetry and aperture and be greater than second shrink groove width, and the shrinkage pool is separated into smooth portion and internal thread portion by first shrink groove from outer to inner.

Preferably, the clamp unit positioned on the left side of the clamp is also provided with a force unloading groove; the force unloading groove is perpendicular to the middle of the second contraction groove, the length of the force unloading groove is larger than or equal to the distance between the farthest ends of the two object placing holes, and the depth of the force unloading groove is the length of the circle centers of the two object placing holes perpendicular to the left end face of the clamp.

Preferably, the concave holes are respectively arranged at two sides of the force unloading groove.

Preferably, the force unloading grooves of the clamp units on the left side and the right side of the clamp are communicated into a whole.

The utility model also provides a technical scheme that: a high-speed spindle machining mechanism comprises the clamp and a high-speed spindle arranged right above the clamp.

Preferably, a protective cover is arranged on the outer side of the high-speed spindle.

Compared with the prior art, the utility model has the advantages that:

(1) the fixture disclosed by the utility model can be used for fixing workpieces in batches, and is simple in structure and reasonable in design.

(2) The clamp is symmetrically designed up, down, left and right, can be used in forward and reverse directions, and is convenient to mount.

(3) The utility model adopts the high-speed main shaft to process the workpiece, and has high processing efficiency and high processing yield.

Drawings

The utility model is further described with reference to the following figures and examples:

FIG. 1 is a schematic structural diagram of a fixture and a high-speed spindle machining mechanism using the same according to the present invention;

FIG. 2 is a schematic view of the structure of the clamp of the present invention;

FIG. 3 is a partial schematic view of a top and bottom view of the clamp of FIG. 2;

FIG. 4 is a partial schematic view of a left side view and a right side view of the clamp of FIG. 2;

fig. 5-8 are schematic views of different angles of the clamp according to the present invention.

Wherein: 1. the high-speed spindle comprises a high-speed spindle body, 2, a clamp, 3, a clamp unit, 4, an object placing hole, 5, a first shrinkage groove, 6, a second shrinkage groove, 7, a force unloading groove, 8, a concave hole, 9, a smooth part, 10 and an internal thread part.

Detailed Description

The present invention will be further described in detail with reference to the following specific examples:

as shown in fig. 1-8, a clamp is used for fixing a workpiece to be processed, the clamp 2 is in a square shape, and a plurality of clamp units 3 are symmetrically arranged on the left side and the right side of the clamp 2 in parallel; the clamp unit 3 positioned on the left side of the clamp 2 comprises two object placing holes 4 which are vertically arranged and penetrate through the clamp 2 and have the same diameter, and a surface formed by the central lines of the two object placing holes 4 is parallel to the left end surface of the clamp 2; the clamp unit 3 positioned at the left side edge of the clamp 2 is also provided with a first contraction groove 5, a second contraction groove 6 and a force unloading groove 7 which are convenient for fastening a workpiece to be processed; the first shrinkage groove 5 vertically penetrates through the clamp 2, is parallel to the left end face of the clamp 2 and is connected with the two object placing holes 4, and the horizontal width of the first shrinkage groove 5 is smaller than the diameter of the object placing holes 4; the second shrinkage groove 6 is vertical to the middle part of the first shrinkage groove 5 and is deviated to the left end face of the clamp 2, and the second shrinkage groove 6 vertically penetrates through the clamp 2 and is communicated with the first shrinkage groove 5; concave holes 8 which are symmetrical up and down and have the aperture larger than the width of the second contraction groove 6 are arranged in the second contraction groove 6 and the clamp 2, and the concave holes 8 are divided into a smooth part 9 and an internal thread part 10 by the first contraction groove 5 from outside to inside; the force unloading groove 7 is vertical to the middle part of the second contraction groove 6, the length of the force unloading groove 7 is larger than or equal to the distance between the farthest ends of the two object placing holes 4, the depth of the force unloading groove 7 is the length of the circle centers of the two object placing holes 4 vertical to the left end face of the clamp 2, the force applied by the two screws is dispersed by the force unloading groove 7, the first contraction groove 5 and the second contraction groove 6 are easy to deform, the screws are easy to tighten, and the clamp 2 can be prevented from being easily fatigued and not elastic when used for a long time; concave holes 8 are respectively arranged at two sides of the force unloading groove 7. The force discharging grooves 7 of the clamp units 3 on the left and right sides of the clamp 2 are communicated into a whole.

The utility model also provides a high-speed spindle machining mechanism which comprises the clamp 2 and a high-speed spindle 1 arranged right above the clamp 2, wherein a protective cover is arranged on the outer side of the high-speed spindle 1.

The working process of one of the clamp units is as follows: placing the workpieces to be processed in the two object placing holes 4 of the clamp unit, respectively placing screws into the upper concave hole 8 and the lower concave hole 8, clockwise screwing the screws to enable the smooth part 9 to deform, and further tightening the first contraction groove 5 and the second contraction groove 6 to fix the two workpieces to be processed; the working process of clamping the workpiece to be processed by the other clamp units is the same as the working process, then the workpiece to be processed is processed by the high-speed main shaft 1, the screw is unscrewed anticlockwise after the processing is finished, and a finished product is taken down, so that the screw is recycled.

The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose of the embodiments is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof, and it is therefore intended that the present embodiments be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Claims

1. The utility model provides a clamp, the clamp is used for fixing the work piece of treating processing which characterized in that: the clamp is in a square shape, and a plurality of clamp units are symmetrically arranged on the left side and the right side of the clamp in parallel; the clamp unit positioned on the left side edge of the clamp comprises two object placing holes which are vertically arranged and penetrate through the clamp and have the same diameter, and a surface formed by the central lines of the two object placing holes is parallel to the left end surface of the clamp; the clamp unit positioned on the left side edge of the clamp is also provided with a first contraction groove and a second contraction groove which are convenient for fastening a workpiece to be processed; the first shrinkage groove vertically penetrates through the clamp, is parallel to the left end face of the clamp and is connected with the two object placing holes, and the horizontal width of the first shrinkage groove is smaller than the diameter of the object placing holes; the second shrinkage groove is vertical to the middle part of the first shrinkage groove and is deviated to the left end face of the clamp, and the second shrinkage groove vertically penetrates through the clamp and is communicated with the first shrinkage groove; the shrinkage pool that second shrink groove and anchor clamps are inside to be equipped with longitudinal symmetry and aperture and be greater than second shrink groove width, and the shrinkage pool is separated into smooth portion and internal thread portion by first shrink groove from outer to inner.

2. A clamp as claimed in claim 1, wherein: the clamp unit positioned on the left side edge of the clamp is also provided with a force unloading groove; the force unloading groove is perpendicular to the middle of the second contraction groove, the length of the force unloading groove is larger than or equal to the distance between the farthest ends of the two object placing holes, and the depth of the force unloading groove is the length of the circle centers of the two object placing holes perpendicular to the left end face of the clamp.

3. A clamp as claimed in claim 2, wherein: the concave holes are respectively arranged at two sides of the force unloading groove.

4. A clamp as claimed in claim 3, wherein: the force unloading grooves of the clamp units on the left side and the right side of the clamp are communicated into a whole.

5. A high-speed main shaft machining mechanism is characterized in that: comprising a fixture according to any one of claims 1-4, further comprising a high speed spindle mounted directly above the fixture.

6. The high-speed spindle machining mechanism according to claim 5, wherein: and a protective cover is arranged on the outer side of the high-speed main shaft.